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4.5
Mounting the smoke emission outlet materials
In case of a wall or roof terminal, the hole must be at least 5 mm bigger than the
diameter of the flue material.
Horizontal parts must be installed at a (3 degree) slope up away the appliance.
Build up the system from the appliance. If this is not possible, you should make use
of a adjustable pipe .
For fitting the system a ½ metre cut-down pipe should be used. Make sure the
inner pipe is always 2 cm longer than the outer pipe. Wall and roof terminal are
also shortened. These parts must be secured with a self tapping screw.
Do not insulate but ventilate bild-in flue material (approx.100cm2)
4.6
Building a false chimney breast.
Before constructing the false chimney breast we advise you to perform a function test with
the gas hearth as described in chapter 7 “checking the installation”
4.7
Chimney breast
Construct the false chimney breast from non- combustible sheet metal in
combination with metal profiles or of brickwork / aerated concrete bricks.
Take the grates and the service panel (see fig. 1.1 and1.2 )into account. Place a
protective shield made of non- combustible material above the grates (see
fig.1.1A) .
Always use a lintel if the chimney breast is constructed of brickwork. These should
not be placed directly onto the appliance.
Construct the chimney breast against the build-in frame (see fig. 1.1B).
Keep a minimum margin of 3 mm between chimney breast and the appliance in
connection with the expansion of the appliance.
The depth of the recess has no influence on the removal of the glass.
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